its would be cool to open the link of the post inside reddit so you can make fast key control so its faster and easyer to navigate also you can make a better looking window to atract more people to watch reddit think as a mobile app that dosent oppen every link on the default browser its in a internal browser of the app.

This would be very cool indeed. I've thought for a while about doing something like the reddit toolbar but without leaving the listing page you came from. The problem is that web browsers are designed so that individual sites can prohibit being "framed" in other pages (typically for security reasons), which currently makes this very difficult to pull off. There's also the matter of users being familiar with their browser ui, and replacing it with a homegrown internal ui will not easily integrate with or be consistent with the rest of their software.

I think the best way to integrate the reddit experience with browsing is to augment the browser, which is why I developed the Socialite and reddit-companion browser extensions.